Tag: whooping cough

* Bordetella pertussis (Bordet and Gengou bacillus) Gram-negative bacilli cultivable aerobic. Contamination is air (infectiousness continues after 3 weeks of the catarrhal phase). The bacteria are multiple on the ciliated respiratory epithelium and secretes several toxins. Pertussis is a poisoning. * The invasion period (or catarrhal) lasts 7 to 15 days. Intractable cough gradually becomes…